Duplicating machine



Amin sa w46. E R PCRD A 39mm DUPLICATAING MACHINE Filed June l5, 1944 5 Sheets-Sheet. l

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April an. 1946. F. R. FQRD www@ DUPLICATING MACHINE Filed June 15,' 1944 3 sheets-sheet 5 @van-rc; Fraymomd Frd.

ATTORNEY..

Patented Apr. 30,l 1946 DUPLICATING MACHINE Frank. Ronald Ford, Sparkbrook, Birmingham,

' England Application June 15, 1944, Serial No. 540,485

In; Great Britain March 31,1943

are `fed over afeed tray, moistenedv on their upper sides; and pass out'- of the machine, on to a re ceiving tray', with the reproduced matter on their upper sides.

object of the present invention is to pro vide certain improvements in the construction of this type of machine whereby, when out-ot use, it can be folded or collapsed into a very compact positicn and can be transported without. dini-- culty.

According to one-feature of the presen-t invention, the machine is mounted on a bafseboard with whichl is associated a hollow cover having means whereby it may be attachedat its lower edge to the baseboard, the cover and baseboard between them' serving toenclose the machine.

According toafurth-er featurel of' the presen-t Y on its pivots so as to lie snugly against the frontV part of the machine when out of use.

According to yetanother feature of the present invention, a receiving trayI is provided which is made in two parts, one of which is slidable in relation to the other, one part being pivoted to the framev of the machine upon an axis extending transversely thereof between the rear portions of the framev side members, and the other part of the tray being movable, back and forth in or on thesaid pivoted tray part, so that, when the machine is out of use, the receiving tray as a whole can be collapsed Land disposed snugly between the side members of. the machine frame and under l the pressure. roller;

Also according to the present invention, the lcrankV handle which isemployed.' to: turn the. cylinlder is detachable from the cranks. sof that, when;

lill-132.5)

itis desired to put the machine away, the han-- ldle can be detached and reattached to the crank so that it projects inwardly towardsv the4 machine instead of outwardly away from the machine.

In order that my invention may be clearly undei-'stood and more readily carried intoA practice,

I have appended hereto three sheets of drawings,

wherein:

Figure I is a perspective View of a cover combined with a base to form an. enclosureV for a 'duplicating machine.

Figure 2 is a part-sectional side elevation ofv .the machine and its enclosure showing the outofeuse position of the feed and receiving trays.

Figure 3 is a similar view of the lower part of the machine, with the trays in their extended positions ready for use.

Figure 4 is a plan View, to a small scale, with the trays in the same position asin Figure 3.

Figure 5r is a perspective View showing the parts of the feed' tray separated from one another and the method'of supportingv the tray on the frame of the machine.

Figure 6 is a part-sectional plan View of the operating crank showing the detachable handle inv its out-ofluse position, and

Figure 7 is a fragmentary perspective view showing the method of attaching the loose handie to" the crank.

In the construction` illustrated, thev duplicating machine has a rigid frame comprising cast side members llii connected?v by suitable tie-bars Il and within which an impression cylinder l2' and y a pressure roller l`3fl are rotatably mounted inv parallel relationship, the roller I3 being arranged below the cylinder l-2 and normally maintained in pressure contact therewith by springs It.

The cylinder I2 is provided with a suitable clip 'l (not shown) whereby the leading edge of a master sheet may be attached thereto, and copy sheets'previously moistenedy on their undersides are brought into contact with this master sheet by *passingv them throughl the nip between the e cylinder l2 and pressure roller I3, the copy sheets being supported before and after treatmenton trays which will be more fully described hereinafter. The moistening of the copy sheets is effected by pressing them against a stationary pad l5 which is kept damp by means of liquid drawn from a tank Iii.

The side members l!! of the `machine are se.- cured" by screws l1 to a metal baseboar-d in the form ofv aplate I8v having marginal. iiangesltt which. extend-I first downwardly and then inward-l 2 ,Y .f Y

ly, the channels formed between the plate I8 and the inturned portions of the flanges I9 being lled by wooden strips 20- which stiffen the plate I9. Alternatively, a baseboard formed wholly of wood may be used.

Associated with the baseboard is a hollow sheet metal cover 2l of any suitable shape, the lower edge of which engages around the marginal ange I9 ofV the plate I8' and is detachably secured thereto by means such as the catches 22 shown in Figure l. may be provided with carrying handles 23.

The feed tray above-mentioned is formed in two parts 24, 25 of unequal size, the main partY 24 normally projecting in front of the machine,

the side members Il) of the latter.

If desired, the cover 2| The main tray part 24 is provided atiis iaieral edges with downturned ilanges 25 which are pivoted to angle section slides 21 engaging in guides 28 formed on the inner faces of the frame side members I0, these slides being riveted or otherwise securedto marginal anges 29 on the rear tray part 25.

If desired, the slides 21 may be located against endwise movement in theguides 28 by means of pins 3|)` which are inserted through holes 3|* in the sides of the Vguides V28 and through registering holes 32 in the slides 21.

A metal plate 33 is secured to the underside of the rear tray part` 25, but spaced away from the latter by distance strips 34,]so thataslot When the tongue 36 is engaged with the slotl 35, the two tray parts 24, 25 together present a continuous rigid surfaceadapted to support a stack of copy sheets, as shown in Figure 3.

`This surface may be provided with edge guides for the copy sheets, such guides preferably being formed as angle-section bars 31 which are piv oted at 38 to one of the tray parts, upon axes perpendicular to'theplane ofthe latter, and are adapted to be swung into an operative position in which they extend along` the other tray part, means being provided for detachably locking them in this position so that they not only increase the rigidity of the feed tray as a whole but also lock the two parts thereof against rela tiveendwise movement. Y

In the construction illustrated, the guide bars 31 are pivoted to the rear tray part 25 and notches 39 in the lower ilanges of such bars can be engaged with clamping screws 40 carried by the main tray part 24, the screws 4I! being then tightened to grip the bars 31 and to holdvthem in their operative positions.

Before the main tray part 24 can pivot in relation to the rear part 25, it must` be slidden forwardly to release the tongue 39 from the slot main part 24 of the feed tray to be swung into,

the out-of-use position shown in Figure 2, and

it will be understood that similar provision for a combined sliding and pivotal movement, with the same object in view, may be made in the case of a onepiece feed tray.

The receiving tray associated with the machine is also made in two parts 44, 45, the part 44 being disposed between therear portions of the frame side members IIJ and pivoted at or near its front edge upon a rod 4Ii extending transversely vof the machine.

This pivoted tray part 44 is formed with upturned lateral anges 41 and a plate 48 secured to its underside is spaced away from the latter by suitable distance strips or other means so that a narrow opening is provided through which can slide the second part 45 of the tray.

`This slidable tray part 45 normally projects rearwardly of the machine as shown in Figure 3, its outward movement being limited by engagement of a lip 49 on its front edge with the adjacent end of the plate 48. An angle section stop 50 for the stack of copy sheets may be provided on the upper surface of the tray part 45 and this strip may be located in any of a numbenefalternative positions by means ofypegs 5l thereon engaging spaced pairs of holes 52 in the, tray part 45. f

The receiving tray, when extended, may rest upon two laterally spaced posts or supports 53, whoseheight may be adjustable to vary the inclination of the tray, and when not required for use the ltray part 45 is slidden forwardlyin relation to the pivoted traypart v44, thev latter being rocked upon the rod 46l until eventually the assembly reaches the position shown in Figure 2,

with the tray part 45 beneath the pressure roller,

I3, to guide the slidable tray :part 454 during its movement into or out of this out-of-use position,

there maybe Vprovided a supporting plate 54,which Y has its rear end pivoted on the rod 46 and rests upon one of the tie-bars vI I,connecting the frame side members Ill. An upturned lip 55 at the front end of this guide plate 54 forms a stop for the slidable tray part 45. When the tray part 45 is in the out-of-use position, the stopA 59 normally associated therewith may be accommodated be-v tween the adjustable posts or supports 53 asA shown in Figure-2. 1

The driving crank 5s associated with ine cyl;1

inder I2 is provided with a detachable handle 51 which, when the machine is not in use, can be removed from the crank 5E and re-attachedv thereto so that it projects inwardly behind theV cylinder I2 instead of outwardly.

In the convenient arrangement shown in Figures 6 and 7, the handle 51. is rotatably mounted in known manner on a coaxial spindle 58 and one end of this spindle is engaged inran open longitudinal slot 59 atthe freeend of the crank 56. An integral or other key` 60 on the spindle 58 is adapted'to vengage the vsides of the slot 59 to prevent angularm'ovement of the spindle.

Adjacent the slot 59 the end of the crank 56 is formed at opposite sidespwith similar recesses 6I adapted to receive -a collar 82 on the spindleV 58 behind the key 59 and a binding projection 63 on anut 84 which is screwed on the end of thev spindle; so that the handle 51 may be mountedV projecting in front of the machine and the second part of said feed tray being secured in a substantially horizontal position within said frame, and a tongue on one of said tray parts normally engaged with a slot in the other of said tray parts in a manner to retain said tray parts in coplanar relationship, said main tray part being capable of sliding movement relatively to said second tray part to disengage said tongue from said slot and also capable of pivotal movement in relation to said second tray part -to enable it to be upturned against the front of said frame when not in use.

2. In a duplicating machine, a rigid frame, a feed tray formed in two parts and adapted to support copy sheets about -to be fed into the machine, the main part of said feed tray normally projecting in front of the machine and the second part of said feed tray being disposed substantially horizontally within said frame, opposed guides provided internally of said frame, lateral slides on said second tray part engaging said guides, means for securing said slides against endwise movement relatively to said guides, a tongue on one of said tray parts normally engaged with a slot in the other of said tray parts in a manner to retain said tray parts in coplanar relationship and ltrunnions on said main tray part engaging longitudinal slots in said slides whereby said main tray part may be moved endwise to disengage said tongue from said slot and thereafter pivoted on said slides to enable it to be swung into an out-of-use position upturned against the front of said frame.

3. In a duplicating machine, a rigid frame, a feed tray formed in two parts and adapted to support copy sheets about to be fed into the machine, the main part of said feed tray normally projecting in front of the machine and the second part of said feed tray being secured in a substantially horizontal position within said frame, a tongue on one of said tray parts normally engaged with a slot in the other of said tray parts in a manner to retain said tray parts in coplanar` relationship, said main tray part being capable of sliding movement relatively to said second tray part to disengage said tongue from said slot and also capable of pivotal movement in relation to said second tray part to enable it to be upturned against the front of said frame when not in use, edge guides for said copy sheets pivoted to the upper surface of one of said tray parts upon axes perpendicular to such surface, said edge guides being adapted to be swung into an operative position in which they extend across the surface of the other of said tray parts, and means for detachably securing said edge guides to said other tray part to lock the two tray parts against relative endwise or pivotal movement.

4. In a duplicating machine, a rigid frame, a feed tray formed in two parts and adapted to support copy sheets about to be fed into the machine, the main part of said feed tray normally projecting in front of the machine and the second part of said feed tray being disposed substantially horizontally within said frame, opposed guides provided internally of said frame, lateral slides on said second tray part engaging said guides, means for securing said slides against endwise movement relatively to said guides, a tongue on one of said tray parts normally engaged with a slot in the other of said tray parts in a manner to retain said tray parts in coplanar relationship, trunnions on said main tray part engaging longitudinal slots in said slides whereby said main tray part may be moved endwise to disengage' said tongue from said slot and thereafter pivoted on said slides to enable it to be lswung into an out-of-use position upturned against the front of said frame, edge guides for said copy sheets pivoted to the upper surface of one of said tray parts upon axes perpendicular to such surface, said edge guides being adapted to be swung into an operative position in which they extend across the surface of the other of said tray parts, and means for detachably securing said edge guides to said other tray part to lock the two tray parts against relative endwise or pivotal movement.

FRANK RONALD FORD. 

